Kotlin

Aker Systems was founded in 2017 by a team of experienced technology professionals who recognised an opportunity to provide highly secure enterprise data platforms to large organisations.  We build and operate ground-breaking, ultra-secure, high performance, cloud-based data infrastructure for the enterprise. Our proprietary technology solutions drive performance and reduce costs while helping our clients to improve the management and sharing of data across their organisations. In 2024, Aker Systems won the Breakthrough Culture Awards highlighting growth companies putting culture first. In 2020 Aker Systems was recognised as a ‘One to Watch’ on the Sunday Times Tech Track.  The Company was also recognised at the Thames Valley Tech Awards 2020; winning the Thames Valley Tech Company of the year, the Emerging Tech Company and High Growth Tech Business categories.  We encourage people of all different backgrounds and identities to apply.  We are committed to maintaining an inclusive, and supportive place for you to do your very best work. About the Role We are seeking a Lead Performance Automation Engineer to define and drive performance engineering strategy, tooling, and practices across large-scale, distributed, cloud-native platforms. This is a technical leadership role responsible for ensuring systems are: * Scalable * Reliable * Resilient under load * Optimised for performance and cost efficiency You will lead performance testing and engineering initiatives across multiple teams, embedding non-functional quality into every stage of the software lifecycle. Key Responsibilities 1. Performance Engineering Strategy & Leadership * Define and own the organisation-wide performance testing and engineering strategy. * Establish standards for: * Performance testing approaches * Workload modelling * Capacity planning * Introduce and scale performance engineering practices across multiple delivery teams. * Provide technical leadership and mentoring to QA and engineering teams on performance best practices. * Align performance goals with business SLAs, SLOs, and user experience expectations. 2. Performance Test Architecture & Automation * Design and implement scalable performance test frameworks and automation pipelines. * Lead adoption of tools such as: * Gatling, JMeter, k6, Locust or similar * Build reusable solutions for: * Load testing * Stress testing * Spike testing * Soak testing * Integrate performance testing into CI/CD pipelines for continuous validation. * Ensure performance tests are repeatable, reliable, and production-representative. 3. Workload Modelling & Test Design * Define realistic user workload models based on production data and usage patterns. * Design performance test scenarios reflecting: * Peak load * Concurrent users * Throughput and latency requirements * Apply risk-based prioritisation for performance testing. * Ensure coverage across: * APIs * Microservices * Data pipelines * Event-driven systems 4. Backend, API & Distributed System Performance * Lead performance validation for: * Microservices architectures * Event-driven systems (Kafka) * High-throughput APIs * Analyse latency, throughput, error rates, and bottlenecks across distributed systems. * Validate system behaviour under failure conditions and degraded environments. * Ensure horizontal scalability and resilience strategies are tested. 5. Cloud, Infrastructure & Scalability Testing * Validate performance across: * AWS cloud environments * Containerised platforms (Docker, Kubernetes) * Conduct capacity planning and infrastructure benchmarking. * Ensure systems scale efficiently using: * Auto-scaling * Load balancing * Distributed architectures * Evaluate performance of Infrastructure as Code (Terraform) deployments. 6. Observability, Analysis & Bottleneck Resolution * Use observability tools to analyse system performance, including: * Metrics (Prometheus, Datadog) * Logs (ELK) * Traces (distributed tracing tools) * Identify and diagnose: * CPU, memory, I/O bottlenecks * Network latency issues * Database performance constraints * Collaborate with engineering teams to optimise system performance and architecture. 7. Non-Functional Quality Governance * Define and enforce performance SLAs, SLOs, and acceptance criteria. * Establish quality gates for performance within CI/CD pipelines. * Ensure performance requirements are validated before production release. * Drive adoption of performance testing standards across teams. * Support audit, compliance, and regulatory expectations in performance-critical systems. 8. Production Performance & Continuous Improvement * Analyse real production performance data to refine testing strategies. * Lead performance-related incident investigations and RCA activities. * Establish feedback loops between production observability and test environments. * Drive improvements in: * System responsiveness * Stability under load * Operational resilience 9. Metrics, Reporting & Optimisation * Define and track performance KPIs, including: * Response times * Throughput * Error rates * Resource utilisation * Build performance dashboards and reporting frameworks. * Drive continuous optimisation initiatives based on performance data. * Align performance metrics with business outcomes and user experience. Technology Environment Performance Testing Tools * Gatling, k6, JMeter, Locust (or similar) Languages * Java, Kotlin, Python, or JavaScript Architecture * Microservices, Event-driven systems, Kafka Cloud & Infrastructure * AWS, Kubernetes, Docker, Terraform CI/CD * GitHub Actions, GitLab CI, Jenkins Observability * Prometheus, Grafana, Datadog, ELK, Distributed Tracing What We’re Looking For Essential * Proven experience as a Performance Test Lead / Performance Engineer / SDET * Strong experience defining performance testing strategies and frameworks * Hands-on expertise with modern performance testing tools * Deep understanding of: * Scalability and distributed system performance * Cloud-native architectures * Experience integrating performance testing into CI/CD pipelines * Strong skills in: * Performance analysis and bottleneck identification * Root cause analysis and system optimisation * Experience defining and tracking performance SLAs/SLOs and KPIs * Ability to lead and influence cross-team quality improvements Desirable * Experience in high-scale or regulated environments * Exposure to: * Chaos engineering * Resilience and fault injection testing * Experience with capacity planning and cost optimisation * Knowledge of security-performance interactions (e.g., encryption overhead) Personal Attributes * Strong systems thinking and analytical mindset * Ability to translate performance data into practical engineering improvements * Influential leader across engineering and product teams * Proactive and outcome-driven * Strong communication and stakeholder management skills Aker Systems Attributes At Aker we work as a team; we are collaborative, hardworking, open, and delivery obsessed. There is no blame culture here: try things, and take responsibility for the outcomes. You are always part of the wider Aker. We help our colleagues and take pride in successfully achieving difficult tasks. We run towards problems and help to solve them. Communicate always, do so accurately and in a timely fashion. In return, we offer a competitive salary, 25 days holiday plus bank holidays, company paid medical insurance and life assurance, pension scheme, annual training allowance, wellbeing allowance, virtual GP, Employee Assistance plan and more. Equal Opportunities Aker Systems fosters a diverse environment that encourages openness in its communications and is committed to providing equal employment opportunity for all people regardless of race, religion, gender or sexual orientation, age, marital status, national origin, citizenship status, disability, veteran status or other personal characteristics. We embrace differences of opinion and diversity because they help challenge us and find new groundbreaking technical solutions.

Bygg framtidens teknik med Professional Galaxy AB Professional Galaxy är ett IT- och teknikkonsultbolag som tillhandahåller högspecialiserad kompetens inom IT, mjukvaruutveckling, SAP, inköp, elektronik och mekanisk konstruktion. Vi samarbetar med erfarna seniora experter och levererar strategiskt värdeskapande kompetens till komplexa och analytiskt krävande projekt. Vårt fokus ligger alltid på hög kvalitet, professionalism och tydliga, mätbara resultat. Vi söker en Senior Fullstackutvecklare Vi söker nu en senior fullstackutvecklare till ett spännande konsultuppdrag inom finansiella system. Du blir en del av ett mindre, högpresterande team som arbetar nära verksamheten med att utveckla moderna och skalbara tjänster. Om uppdraget Som senior utvecklare kommer du att arbeta i ett tvärfunktionellt team om cirka fyra personer där ni tillsammans ansvarar för en egen tjänst. Rollen innebär ett stort ansvar i både nyutveckling och vidareutveckling av befintliga lösningar, med fokus på kvalitet, skalbarhet och långsiktig teknisk hållbarhet. Du förväntas bidra med din erfarenhet i tekniska vägval, arkitektur och utvecklingsprocesser, samt vara en viktig del i teamets fortsatta utveckling. Krav • Minst 8 års erfarenhet av mjukvaruutveckling • Mycket goda kunskaper i Java • Erfarenhet av React och TypeScript • Erfarenhet av fullstackutveckling och moderna webbtjänster • Flytande kunskaper i svenska och engelska, i tal och skrift Meriterande • Erfarenhet av Kotlin • Kunskap om microservices-arkitektur • Erfarenhet av REST, SQL eller Kafka • Vana av att arbeta i agila, produktnära team Övrig information • Placeringsort: Linköping • Arbetsmodell: Hybrid (ca 4 dagar på plats, 1 dag remote med flexibilitet) • Omfattning: 100% • Start: Enligt överenskommelse • Uppdragslängd: 12 månader • Bakgrundskontroll genomförs innan start Uppdragsinformation • Startdatum: 2026-05-11 • Slutdatum: 2027-05-10 • Sista ansökningsdag: 2026-05-17 Ansökan Är du rätt person för uppdraget, eller vill du rekommendera en stark kandidat? Tveka inte att ansöka redan idag urval och intervjuer sker löpande. Ansök genom att bifoga ditt CV (vi vill inte ha något personligt brev) och besvara urvalsfrågorna. Frågorna utgår från kravprofilen och dina svar ligger till grund för urvalet. Att besvara frågorna är en förutsättning för att ansökan ska anses komplett. Vänligen notera att alla krav och meriter ska vara uppfyllda vid ansökningstillfället.

Would you like to take part in transforming healthcare? Qbtech is the global market leader in professional ADHD tests, providing tests that are both CE marked and FDA cleared for use as an aid in the assessment and treatment evaluation of ADHD for people age 6-60. Our vision is to transform healthcare by providing a complete system of leading objective tests, products and services that empowers clinical and financial decision-makers to improve outcomes and support patients to better understand their symptoms and treatment. Qbtech is present in 14 countries with offices in Stockholm, London and Houston. Over the next years, Qbtech will make significant investments into new products, technologies and people to further strengthen their services and product offerings with the aim of building an ecosystem with solutions for providers, clinicians and patients. About the role We are looking for a Senior Software Engineer (SSE) for backend works in our product engineering team with systems / services development for the Qbtech platform. Primary implementation languages are Java & Kotlin. The main focus of the work is coding (development) but an SSE works with the entire software delivery lifecycle. The role is based in Stockholm, Sweden and will report to Engineering Manager.  There is no possibility of a complete remote role. This is Hybrid with at least 3 days a week from office. Essential Duties and responsibilities Qbtech’s development of products and services are controlled by Qbtech Quality Management Systems, international standards and certificates as well as specific laws. In accordance with those, essential duties and responsibilities are: Develop and document new product features & stories. Code reviews for peers. Maintain and improve legacy code. Manage DevOps and cloud infrastructure provisioning. Manage software deployment. Troubleshooting/investigation of incidents and bug fixing. We are looking for someone who has Extensive development skills using Java and Kotlin. Strong problem-solving mentality. Knowledge of the Ktor framework. Knowledge of at least one well known test framework such as Junit. Good knowledge of network infrastructure related to web application (examples: load balancer, firewall, security groups, CDN etc.). Experience of working with service provisioning for at least one of the following cloud services platforms (AWS, Google Cloud, Microsoft Azure). Experience of an infrastructure as code (Terraform). Experience with containerization (Docker). Experience from working with Agile development methodologies. Excellent written and verbal skills. At least 6-8 years documented experience. Qualifications Required for Position: Bachelors / Master’s degree in Computer Science or related field. Fluent in English. What can Qbtech offer you? At Qbtech you will have the opportunity to work with something meaningful that helps people understand ADHD while transforming healthcare. You will work in an international environment together with some of the leading experts in the world. You will lead the development of best in class as well as first in class products and services – globally. There are plenty of opportunities to learn and grow and to expand into other technologies within the company. Qbtech also offers education and certifications in fields that are relevant to the technology used within the company.

Är du en utvecklare med erfarenhet av att jobba i team? Perfekt! 👌 Vi söker dig som tycker om problemlösning, vill leverera kundvärde genom kod och tycker om att samarbeta i team. Det skadar inte om du är social, glad och öppen. ERFARENHET 5+ års erfarenhet av systemutveckling TECHSTACK Kotlin Azure SQL RabittMQ Java är är ett plus ---- ❤️Logikfabriken är ett konsultbolag av och för talangfulla, engagerade och roliga personer inom tech. 🚀Ambitionen är att bli Sveriges bästa och mest inspirerande arbetsgivare. 🌕Tillsammans skapar vi förutsättningar och driver företaget framåt. 🍾Att umgås är något vi värdesätter och därför åker vi på två konferenser per år, anordnar talks, afterwork och mycket annat skoj. 💰Förutom ovanstående tror vi på schyst ersättning och transparens. Därför har alla på Logikfabriken samma villkor, sätter sin egen lön, pension, föräldraersättning, antal semesterdagar och andra förmåner. Vår modell är flexibel, trygg och ger i de flesta fall en ordentlig löneökning. Här kan du själv se vad du skulle kunna tjäna: Räkna ut din lön 🌳Vi brinner även för hållbarhet. Därför är Logikfabriken sedan 2017 klimatneutralt och jobbar ständigt för att minska vårt avtryck. Här hittar du hela vårt erbjudande: Logikfabrikens FAQ